Blackboard writing auxiliary device for teaching

Abstract

The utility model discloses a blackboard writing auxiliary device for teaching, and relates to the technical field of teaching assistance. The device comprises a moving assembly, a first supporting plate is arranged below the moving assembly, first fixing frames are rotationally connected to the left side and the right side of the first supporting plate through pin shafts, second fixing frames are rotationally connected to the sides, away from the first supporting plate, of the two first fixing frames through pin shafts, and a second supporting plate is arranged below the first supporting plate; by arranging the fixing assembly, the second supporting plates can be folded when not used, the second supporting plates and the first supporting plates are rotationally connected through the circular shafts, the first fixing frames and the second fixing frames are rotationally connected through the pin shafts, the fixing assemblies are arranged on the supporting plates, the supporting plates can be folded, and the supporting plates can be folded when not used. And then the magnetic blocks in the fixing assemblies are buckled in the circular iron grooves, so that the fixing effect is achieved, and the danger caused by the fact that students alarm after class can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching assistance, in particular to a blackboard writing assistance device for teaching. Background Art

[0002] Traditional teachers often have to write on the blackboard to explain to students during teaching. Sometimes they need to write a lot on the blackboard. At this time, the teacher needs to hold the book with one hand and hold the chalk with the other hand to write on the blackboard. Writing on the blackboard for a long time will cause pain in the teacher's arms and shoulders, increasing the teacher's workload.

[0003] The existing blackboard writing auxiliary device has a relatively large frame. When not in use, it not only takes up the space of the podium, but also students can easily bump into the blackboard writing auxiliary device when playing after class, which can cause danger to students playing after class and pose a safety hazard. Therefore, we have proposed a blackboard writing auxiliary device for teaching. Utility Model Content

[0004] The purpose of the present invention is to provide a blackboard writing auxiliary device for teaching. Through the fixing component, specifically the support plate two can be folded when not in use. The support plate two and the support plate one are rotatably connected by a circular shaft, and the fixing frame one and the fixing frame two are rotatably connected by a pin shaft, thereby achieving a folding effect, and then the magnetic block in the fixing component is buckled in the circular iron groove, thereby achieving a fixing effect. In this way, the danger caused by students playing after class can be prevented, and the existing problem that the frame of the blackboard writing auxiliary device is relatively large, not only occupies the podium space when not in use, but also students playing and fighting after class can easily bump into the blackboard writing auxiliary device, which will cause danger to students playing and fighting after class, and there are safety hazards. Therefore, we propose a blackboard writing auxiliary device for teaching.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The top of the support frame is fixed with a lifting mechanism, and the bottom of the support frame is connected with a lifting mechanism, and the lifting mechanism is connected with a new type of support frame to the lifting mechanism, and the support frame is fixed with a new mechanism.

[0007] Furthermore, the two fixing frames are fixedly connected to fixed discs on the left and right sides of the bottom, two circular iron grooves are provided at the bottom of the support plate 2, and a plurality of positioning grooves are fixedly connected to the top of the support plate 2. The magnetic block is adapted to the circular iron grooves, and a movable groove is fixedly connected to the back of the support plate 1. By setting the positioning grooves, different angles for placing books can be achieved, which can better adapt to the different habits of different teachers.

[0008] Furthermore, two groups of pressing components are provided on the front side of the support plate 1, and the parts connected inside the two groups of pressing components are the same. The pressing components include a pressing plate, the top of the pressing plate is fixedly connected to the support rod 1, the outer surface of the support rod 1 is fixedly connected to the spiral spring, the spiral spring is fixedly connected to the support rod 2 at one end away from the support rod, and the back side of the support plate 1 is fixedly connected to a hollow groove. By arranging the pressing components to press the book, it is possible to more effectively prevent the book from being turned over or blown away by the wind.

[0009] Furthermore, the sliding assembly includes a slide rail, and two pulleys are slidably connected to the inner wall of the slide rail. The left and right sides of the slide rail are fixedly connected to limit blocks. The inner walls of the two pulleys are rotatably connected to C-shaped support rods. The top of the teaching board is fixedly connected to a slide rail. By setting the slide rail, the auxiliary device can be moved left and right, which makes it more convenient for teachers to write on the blackboard in different positions.

[0010] Furthermore, a fixed plate is fixedly connected to the surface of the C-shaped support rod, a motor is fixedly connected to the top of the fixed plate, a spiral rod is threadedly connected to the center of the movable groove, the bottom output end of the motor is fixedly connected to the top of the spiral rod through a coupling, and the bottom of the spiral rod is rotatably connected to a limiting plate. The auxiliary device is moved up and down by setting the spiral rod, which can be better suitable for teachers of different heights.

[0011] Furthermore, the outer surface of the C-shaped support rod is fixedly connected to the inner wall of the fixed plate, the bottom of the C-shaped support rod is fixedly connected to the top of the limit plate, the surfaces of the two C-shaped support rods are both slidably connected to the inner wall of the movable groove, the bottom of the support plate one is fixedly connected to the center of the circular shaft surface, and the support plate two is hinged to the support plate one through the circular shaft. The C-shaped support rod is fixed by setting a fixed plate, which can effectively control the distance between the two slide rails.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model is provided with a fixing component. Specifically, the support plate 2 can be folded when not in use. The support plate 2 is rotatably connected to the support plate 1 through a circular shaft, and the fixing frame 1 is rotatably connected to the fixing frame 2 through a pin shaft, thereby achieving a folding effect. The magnetic block in the fixing component is buckled in the circular iron groove to achieve a fixing effect, which can prevent the danger caused by students fighting after class.

[0014] 2. The utility model is provided with a moving component and a sliding component. Specifically, when in use, the motor is started to drive the screw rod to rotate. The rotation of the screw rod will cause the moving groove to move up or down through the fixation of the C-shaped support rod, thereby achieving the effect of adjustment. This allows people of different heights to use it. When the teacher writes to different positions, the entire auxiliary device can be moved by the slide rail, so that various positions of the blackboard can be effectively used.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the auxiliary frame structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the enlarged structure of A;

[0020] Figure 4 This is a schematic diagram of the structure of the mobile component of the utility model;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the blackboard writing auxiliary device of the utility model;

[0022] Figure 6 This is a schematic diagram of the back structure of the blackboard writing auxiliary device of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the pressing component of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Teaching board; 11. Sliding assembly; 111. Slide rail; 112. Pulley; 113. Limit block; 12. Moving assembly; 121. Fixed plate; 122. Motor; 123. Screw rod; 124. C-shaped support rod; 125. Limit plate; 13. Support plate 1; 131. Fixed frame 1; 132. Fixed frame 2; 133. Fixed disc; 134. Support plate 2; 135. Positioning groove; 136. Round shaft; 137. Moving groove; 138. Round iron groove; 14. Pressing assembly; 141. Pressing disc; 142. Support rod 1; 143. Volute spring; 144. Support rod 2; 145. Hollow groove; 15. Fixed assembly; 151. Soft belt; 152. Magnetic block; 153. Fixing screw. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-7 As shown, the utility model is a teaching blackboard auxiliary device, comprising a teaching board 1, a sliding component 11 is provided on the top of the teaching board 1, a moving component 12 is provided on the front of the sliding component 11, and a support plate 13 is provided below the moving component 12;

[0028] The left and right sides of the support plate 13 are rotatably connected to a fixing frame 131 through a pin shaft. The two fixing frames 131 are rotatably connected to a fixing frame 2 132 on the side away from the support plate 13 through a pin shaft. A support plate 2 134 is provided below the support plate 13. The bottoms of the two fixing frames 132 are rotatably connected to the left and right sides of the support plate 2 134 through a pin shaft. The back of the support plate 2 134 is rotatably connected to a circular shaft 136. Two fixing components 15 are provided on the top of the back of the support plate 13. The parts connected inside the two fixing components 15 are the same. The fixing component 15 includes a soft belt 151. The top of the soft belt 151 is fixedly connected It is connected to a magnetic block 152, and a fixing screw 153 is inserted at the bottom of the soft belt 151. The soft belt 151 is fixedly connected to the back of the support plate 13 through the fixing screw 153. By setting the fixing component 15, the support plate 2 134 can be folded when not in use. The support plate 2 134 and the support plate 13 are rotatably connected through the circular shaft 136, and the fixing frame 1 131 and the fixing frame 2 132 are rotatably connected through the pin shaft, thereby achieving a folding effect, and then the magnetic block 152 in the fixing component 15 is buckled in the circular iron groove 138 to achieve a fixing effect, so as to prevent the danger caused by students fighting after class.

[0029] The two fixing frames 132 are fixedly connected to the left and right sides of the bottom with fixed discs 133, the bottom of the support plate 134 is provided with two circular iron grooves 138, the top of the support plate 134 is fixedly connected to a plurality of positioning grooves 135, the magnetic block 152 is adapted to the circular iron grooves 138, and the back of the support plate 1 13 is fixedly connected to a movable groove 137.

[0030] Two groups of pressing components 14 are provided on the front of the support plate 13. The parts connected inside the two groups of pressing components 14 are the same. The pressing components 14 include a pressing plate 141. The top of the pressing plate 141 is fixedly connected to the support rod 1 142. The outer surface of the support rod 1 142 is fixedly connected to a spiral spring 143. The spiral spring 143 is fixedly connected to the support rod 2 144 away from the end of the support rod 1 142. The back of the support plate 13 is fixedly connected to a hollow groove 145.

[0031] The sliding assembly 11 includes a slide rail 111, and two pulleys 112 are slidably connected to the inner wall of the slide rail 111. The left and right sides of the slide rail 111 are fixedly connected to limit blocks 113. The inner walls of the two pulleys 112 are rotatably connected to C-shaped support rods 124. The top of the teaching board 1 is fixedly connected to the slide rail 111.

[0032] The surface of the C-shaped support rod 124 is fixedly connected to a fixed plate 121, the top of the fixed plate 121 is fixedly connected to a motor 122, the inner center thread of the movable groove 137 is connected to a screw rod 123, the bottom output end of the motor 122 is fixedly connected to the top of the screw rod 123 through a coupling, and the bottom of the screw rod 123 is rotatably connected to a limiting plate 125. By setting a moving component 12 and a sliding component 11, specifically when in use, starting the motor 122 drives the screw rod 123 to rotate, and the rotation of the screw rod 123 will cause the movable groove 137 to move upward or downward through the fixation of the C-shaped support rod 124, thereby achieving an adjustment effect, so that people of different heights can use it, and when the teacher writes to different positions, the entire auxiliary device can be moved by the slide rail 111, so that various positions of the blackboard can be effectively used.

[0033] The outer surface of the C-shaped support rod 124 is fixedly connected to the inner wall of the fixing plate 121 , and the bottom of the C-shaped support rod 124 is fixedly connected to the top of the limiting plate 125 .

[0034] The surfaces of the two C-shaped support rods 124 are both slidably connected to the inner wall of the movable groove 137, the bottom of the support plate 13 is fixedly connected to the center of the surface of the circular shaft 136, and the support plate 2 134 is hinged to the support plate 1 13 through the circular shaft 136.

[0035] A specific application of this embodiment is: when in use, the motor 122 is started to drive the screw rod 123 to rotate. The rotation of the screw rod 123 is limited by the C-shaped support rod 124, which will cause the movable slot 137 to move upward or downward, thereby achieving the adjustment effect, so that people of different heights can use it. The two magnetic blocks 152 and the circular iron slot 138 are unfastened, and the support plate 2 134 is flipped over. The back of the support plate 2 134 will rotate at the bottom of the support plate 1 13 through the circular shaft 136. The support of the support plate 2 134 by the two fixing frames 131 and the fixing frame 2 132 will cause the support plate 2 134 to be lowered. The teacher chooses a suitable angle to put the book into the positioning slot 135, turns the book to the page he wants, and then pries the two pressing pieces 141 upwards. The pressing piece 141 will drive the support rod 1 142 to rotate, and the support rod 1 142 rotates It will drive the spiral spring 143 to open, and then slowly lower the pressing piece 141. The pressing piece 141 is reset under the action of the elastic winding of the spiral spring 143, which will press the pressing piece 141 on the book, thereby achieving a pressing effect, which can prevent the book from being blown away by the wind or turning pages. When the teacher writes to different positions, the entire auxiliary device can be moved by the slide rail 111, so that various positions of the blackboard can be used effectively. When not in use, the support plate 2 134 can be folded, and the fixing frame 1 131 and the fixing frame 2 132 are connected by a pin shaft to achieve a folding effect, and then the magnetic block 152 in the fixing component 15 is buckled in the circular iron groove 138 to achieve a fixing effect, which can prevent the danger caused by students fighting after class. The auxiliary device has a simple structure and is easy to operate, which greatly reduces the workload of teachers when writing on the blackboard.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A teaching blackboard writing auxiliary device, comprising a teaching board (1), a sliding component (11) is provided on the top of the teaching board (1), a moving component (12) is provided on the front of the sliding component (11), and a supporting plate (13) is provided below the moving component (12), characterized in that ； The left and right sides of the support plate 1 (13) are both rotatably connected to a fixing frame 1 (131) via a pin shaft, and the sides of the two fixing frames 1 (131) away from the support plate 1 (13) are rotatably connected to a fixing frame 2 (132) via a pin shaft. A support plate 2 (134) is provided below the support plate 1 (13), and the bottoms of the two fixing frames 2 (132) are both rotatably connected to the left and right sides of the support plate 2 (134) via a pin shaft. The back of the support plate 2 (134) is rotatably connected to a circular shaft. (136), two fixing components (15) are provided on the top of the back of the support plate (13), the parts connected inside the two fixing components (15) are the same, the fixing component (15) includes a soft belt (151), the top of the soft belt (151) is fixedly connected to a magnetic block (152), the bottom of the soft belt (151) is plugged with a fixing screw (153), and the soft belt (151) is fixedly connected to the back of the support plate (13) through the fixing screw (153).

2. A teaching blackboard writing auxiliary device according to claim 1, characterized in that: The left and right sides of the bottoms of the two fixing frames (132) are fixedly connected with fixed discs (133), the bottom of the support plate (134) is provided with two circular iron grooves (138), the top of the support plate (134) is fixedly connected with a plurality of positioning grooves (135), the magnetic block (152) is adapted to the circular iron grooves (138), and the back of the support plate (13) is fixedly connected with a movable groove (137).

3. A teaching blackboard writing auxiliary device according to claim 2, characterized in that: Two groups of pressing assemblies (14) are provided on the front of the support plate 1 (13), and the internal connected parts of the two groups of pressing assemblies (14) are the same. The pressing assemblies (14) include a pressing sheet (141), the top of the pressing sheet (141) is fixedly connected to the support rod 1 (142), the outer surface of the support rod 1 (142) is fixedly connected to the spiral spring (143), the end of the spiral spring (143) away from the support rod 1 (142) is fixedly connected to the support rod 2 (144), and the back of the support plate 1 (13) is fixedly connected to the hollow groove (145).

4. A teaching blackboard writing auxiliary device according to claim 3, characterized in that: The sliding assembly (11) comprises a slide rail (111), the inner wall of the slide rail (111) is slidably connected to two pulleys (112), the left and right sides of the slide rail (111) are fixedly connected to limit blocks (113), the inner walls of the two pulleys (112) are rotatably connected to C-shaped support rods (124), and the top of the teaching board (1) is fixedly connected to the slide rail (111).

5. A teaching blackboard writing auxiliary device according to claim 4, characterized in that: The surface of the C-shaped support rod (124) is fixedly connected to a fixed plate (121), the top of the fixed plate (121) is fixedly connected to a motor (122), the inner center of the movable groove (137) is threadedly connected to a screw rod (123), the bottom output end of the motor (122) is fixedly connected to the top of the screw rod (123) through a coupling, and the bottom of the screw rod (123) is rotatably connected to a limit plate (125).

6. A teaching blackboard writing auxiliary device according to claim 5, characterized in that: The outer surface of the C-shaped support rod (124) is fixedly connected to the inner wall of the fixed plate (121), and the bottom of the C-shaped support rod (124) is fixedly connected to the top of the limiting plate (125).

7. A teaching blackboard writing auxiliary device according to claim 6, characterized in that: The surfaces of the two C-shaped support rods (124) are both slidably connected to the inner wall of the movable groove (137), the bottom of the support plate 1 (13) is fixedly connected to the center of the surface of the circular shaft (136), and the support plate 2 (134) is hinged to the support plate 1 (13) through the circular shaft (136).

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